All – I need a team building exercise for a team that is growing rapidly. I would like the exercise to provide a strong message on the importance of communication.

I have heard of an exercise where there is something that has been built put into a separate room (like out of legos). One person from each team goes to see the built thing and has to come back and communicate to his team what it is and have them replicate it. I know this is fuzzy but it does exist and someone out there must have the details. I would greatly appreciate it.
Rebecca Hutchison